ISRC USC4R2218688
Verified recording
USC4R2218688 is “Entr’acte” by Irwin Kostal,
registered on the CopyrightChains blockchain with CopyrightID
0x3cd4b0e52f8b8b6a08e47234880b5bff9e1807f61765021c7ca024e46271cf10 and independently timestamped
in Bitcoin block 956304 on 2026-07-02.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USC4R2218688.
Recording identifiers
- ISRC
- USC4R2218688
- Title
- Entr’acte
- Artist
- Irwin Kostal
- CopyrightID (CopyrightChains transaction hash)
0x3cd4b0e52f8b8b6a08e47234880b5bff9e1807f61765021c7ca024e46271cf10
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-02T03:55:08+00:00
- Bitcoin block
- 956304
- Canonical record hash
sha256:d21de41ad30c42183148f0ac580fc96e16d05de842abce527feded824de89927- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USC4R2218688
- Bitcoin block existence check
- https://blockstream.info/api/block/956304